Improvement in grain-cleaners



W. B. SMITH.

G r1O OT Gra-in Winnower.

waited tatee @aan aan.

WILLIAM B. SMITH, 0F CLAYTON, ILLINOIS, ASSIGNOB, 'IO HIMSELIREID WALLACE, AND CYRUS FINLEY, OF SAME PLACE.

Letters `Patent No. 92,385, elated July 6, 1869.

IMPROVEMENT IN GRAIN-CLEANERS.

The Schedule referred to in'these Letters Patent and making part of the same.

To all whom tt may concern Be it known that I, WlLLIAM B. SMITH, of Clayton, in the county of Adams, and State of Illinois, have invented a new and improved Grain-Cleaner; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This-invention relates to improvements in graincleaning machinery, designed to combine a fanning and scouring-apparatus in one machine; and

It consists in the arrangement of the blowers, screens, and scouring-awaratus relatively to each other.'

Also, in the arrangement of the air-passages for distributing thc,air upon the screen, and for action upon the grain after leaving the screens, all as hereinafter more fully specified.

Figure 1 represents a longitudinal sectional eleva. tion of my improved machine; and

Figure 2 represents a horizontal section, taken on the line ai a: of tig. 1. v

Similar letters ot' reference indicate corresponding parts.

I provide two fans, A and B, upon one vertical shaft, C, deriving motion from the horizontal shaft D,

driven by a belt from the driving-wheel E.

The air is supplied to the upper fan through the top of the curb, and to the lower one through the spouts F G.

The blast from the upper fan is-delivered tothe upper screens as nearly in a horizontal plane as possible, to prevent theobstruetion to the passage ofthe heavy grains, which occurs when the direction is more oblique, as in the tanning-mills of ordinary construction, while it iioats the lighter materials off the screens to better advantage, according to my arrangement.

To prevent the blast being delivered upon one side of the screens, vI provide the bent chutes H for distributing the blast evenly thereon.

For shaking the shoe I, which supports the screens,

I support it at the outer end by the links K, andA at the inner end by the bar L, the ends of which projectl over the top of the frame, and slide thereon.

The said bar L is connected by-a link, M, to a lever, N, pivoted at O, and connected, at P, to a connectingrod, Q, having a bentl end, taking in a cam-groove in the driving-pulley It.

The grain, after passing over the sieves, is delivered, over the apron S, to the spout G, and 'thence t the 'hopper U of a scouring-device, V, and finally into the spout F, near the mouth.

An apron, S', is also vconnected to the lower sieve, for receiving any lightor long grains that may iind their way to the said screen, and carrying them olf in a lateral direction.

The sponts F and G, into which the grain is delivcred from the screens and scouring-device, being also the supply-passages for the fan A, will have a strong upward draught of air, which will take up any light substance in the grain which may have passed through.

the screens or scourer, and discharge it through the passage W.

For chaiiing the grain only, the scouring-device may be'disconnected, and the grainpassed directly into the spout F; or the hopper ofthe scouring-device may be removed, and the grain delivered from the spout G; or the spout G may be reversed in its position, as

shown by the dotted lines, which arrangement I prefer. l

by Letters Witnesses JOHN Hays, E. LoYD. 

